Tune cluster with GFS to best performance

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Hi, all

 

My configuration is as follows: two directors configured as LVS-NAT or LVS-DR, 4 GFS nodes as application servers which serve telnet and HTTP services, 1 GNBD node which has iSCSI connection to our shared storage server and 1 lock_gulm server. And before we ordered GFS we just used nfs mount to a file server which is currently a GNBD, but the performance is so slow for a certain application, since this application has multiple loops to access large number of data. We thought GFS is much more powerful than NFS, but not now. Do you have any idea to tune GFS performance or better configuration for such a situation?

Thank you!

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